1. [ noun ] (biology,anatomy,biochemistry,pharmacology) hormone secreted by the posterior pituitary gland (trade name Pitressin) and also by nerve endings in the hypothalamus; affects blood pressure by stimulating capillary muscles and reduces urine flow by affecting reabsorption of water by kidney tubules
Synonyms: antidiuretic_hormone pitressin vasopressin
Related terms: hormone vasoconstrictor trade_name
Similar spelling:   Adah